NSR Slick GT3 RED Rear 20 x 10mm Tires, 4/pk Special New Material, RTR rear tire that can improve lap times of up to 0.5 seconds compared to the original rubber. Designed to be used with GT3 Scaleauto, Sideways, Slot.it LMP and Group 5 cars from Ø16.9 to Ø17.5 wheels.